S
M
T
W
T
F
S
26
58°
39°
27
62°
33°
28
59°
37°
29
57°
36°
30
66°
33°
1
73°
40°
2
80°
50°
3
81°
57°
4
71°
50°
5
55°
44°
6
52°
41°
7
57°
41°
8
63°
45°
9
68°
49°
10
67°
51°
11
65°
47°
12
66°
49°
13
64°
48°
14
65°
47°
15
63°
44°
16
71°
53°
17
73°
52°
18
73°
49°
19
69°
45°
20
64°
46°
21
63°
47°
22
64°
46°
23
64°
46°
24
65°
47°
25
72°
48°
26
75°
55°
27
75°
55°
28
74°
54°
29
75°
52°
30
70°
49°
31
72°
52°
1
75°
55°
2
74°
52°
3
73°
49°
4
69°
50°
5
74°
50°
6
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Potsdam
Potsdam's May 2026 forecast shows daily high temperatures ranging from 52° to 81°, with overnight lows between 41° and 57°. The average high for May is 69° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Potsdam. See also: June | July | August.